Bottle cap



FIG. 1 is a front elevational view of a bottle cap showing my design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a left side elevational view thereof in an open position;

FIG. 4 is a left, front perspective view in a partially opened position; and,

FIG. 5 is a front elevational view in a fully opened position. 

The ornamental design for a bottle cap, as shown and described. 